【Top Quality】Made of premium quality foam material and high density felt bottom.Eco friendly, non-toxic, no smell, strong adsorbability, washable and reusable..【Super magnetic】 We added two magnets to the whiteboard eraser, which is 3 times higher magnetic than the others. Works well on all melamine, painted steel, magnetic whiteboard, refrigerators and other dry erase surfaces..【Stronger cleaning】Felt Bottom can removes markings quickly and easily from dry-erase surfaces. If you haven't cleared the mark on the whiteboard for a long time, the marks need erasing with some water..【Ergonomic design】Wavy dry eraser erasers, easy to grip and use for all ages. Rectangle whiteboard eraser small and portable, ideal for home, office And school..【About Us】Product Size is 4.13 x 1.77 x 0.6 inch. If you have any questions during use, please contact us immediately, we will do our best to serve you!